Display transitions in the Effect Controls panel
You can use the Effect Controls panel to change settings for a transition you placed in a sequence. Settings vary from transition to transition. In the Effect Controls panel, the adjoining clips and transition are displayed in A-roll/B-roll format.

- A.
- Play The Transition button
- B.
- Transition preview
- C.
- Edge selector
- D.
- Clip previews
- E.
- Start and End sliders
- F.
- Clip A (first clip)
- G.
- Transition
- H.
- Clip B (second clip)
- I.
- Current‑time indicator
Adjust transition alignment
You can change the alignment of a transition placed between two clips in either a Timeline panel or the Effect Controls panel. A transition need not be centered or strictly aligned to the cut. You can drag the transition to reposition it over the cut as desired.
Align a transition using the Effect Controls panel
- Double-click the transition in a Timeline panel to open the Effect Controls panel.
- If the Effect Controls time ruler is not visible, click
the Show/Hide Timeline View button
in
the Effect Controls panel. If necessary, widen the panel to make
this button visible and active. - In the Effect Controls time ruler, position the pointer
over the center of the transition until the Slide Transition icon
appears;
then drag the transition as desired. For finer control, magnify
the time ruler.To center the transition on the cut line, in the Effect Controls panel, double-click the transition, and select Center At Cut.
To place all of the transition in the clip preceding the edit point, drag the transition to the left to align its end to the edit point. Alternatively, in the Effect Controls panel, double-click the transition, and select End At Cut.
To place all of the transition in the clip following the edit point, drag the transition to the right to align its beginning to the edit point. Alternatively, in the Effect Controls panel, double-click the transition, and select Start At Cut.
To place unequal portions of the transition in each clip, drag the transition slightly left or right. For finer control, zoom in on the time ruler.
Dragging the transition in the Effect Controls time ruler
You can also choose an option from the Alignment
menu in the Effect Controls panel. Custom Start appears as an option
in the Alignment field only when you drag the transition to a custom
location over the cut.
Move a cut and transition together
You can adjust the location of the cut in the Effect Controls panel. Moving the cut line changes the In and Out points of the clips, but does not affect the length of the movie. As you move the cut, the transition moves with it.
- Double-click the transition in a Timeline panel to open the Effect Controls panel.
- If the Effect Controls time ruler is not visible, click
the Show/Hide Timeline View button
in
the Effect Controls panel. If necessary, widen the panel to make
this button visible and active. - In the Effect Controls time ruler, position the pointer
over the transition, placing it on the thin vertical line that marks
the cut. The pointer changes from the Slide Transition icon
to
the Ripple Edit icon
. - Drag the cut as desired. (You can’t move the cut beyond either end of the clip.)
Change transition duration
You can edit a transition’s duration in either a Timeline panel or the Effect Controls panel. The default duration for transitions is initially set to 1 second.
Lengthening a transition’s duration requires that one or both clips have enough trimmed frames to accommodate a longer transition. (See Clip handles and transitions.)
. If
necessary, widen the panel to make this button visible and active.
In a Timeline panel, position the pointer
over the end of the transition until the Trim-In icon
or
the Trim-Out icon
appears;
then drag.
